Sole channeling machine



Aug. 20, 1935. J. c. DOBYNE SOLE CHANNELING MACHINE Filed Dec. 5, 1932 2 Sheets-Sheet 1 g 37 "u E um 9 69 llllllllll Aug. 20, 1935. J. c. DOBYNE SOLE CHANNELING MACHINE Filed Dec. 3, 1952 2 Sheets-Sheet 2 53mm: Jaw/v C. 005 Wm,

Patented Aug. 20, 1935 '2',o12,122f I soL CHALNNELINGhMACHlNE John Dobyne, St. Louis, Mo. 7 App caticn Decemher 3, 132 Serial No. 645,522 6 Claims; 01. 12-27) This invention pertains to machines for cha nneling shoe soles preparatoryto stitching a sole to the upper as, for instance, in theconstruction of McKay shoes. I

In repairing this type of shoe the sole is usual-1y 7 applied to a shoe, the upper of which is finished,

and it is desirable to place the sole on theshoeand roughly shape the outer edge before cutting the channel.

One of the objects of. this invention, therefore, 7

is to provide a channeling machine by means of which a solemay be channeled while in place on theshoe. g

Another object is to provide a machine whereby the sole may be channeled and also agroove ior r the stitching run within *the channel and on which these operations may be performed simul taneously,

Another object is to provide such a machine" whereby the position of the channel and also 'of' the groove'wi th respect tothe'so1e edge may be adjusted as desiredand whereby the depth or cut of both channeling and grooving cutters may be adjusted at will.

A further object is to prov-idea simplified construction of channeling cutter, together with means provided on the machine whereby the cut ter may be held in position so that its'cuttine edge may be stoned in a convenient manner and so as to preserve the accuracy of its cutting edge.

Further objects will appear iromthe following description taken in connection with the'accom panying drawings, in which V j a Figure 1 isa perspective view of a channeling machine embodying this invention with the press er foot removed; 7 1 V I Figure 2 is a vertical section through the driving mechanism, showing. the connections ior driving the feeding device;

Figure 3 is a side view, partly in section, 'ta en from the left-hand side of Figure 1;

Figure 4 is a partial plan View, illustrating the arrangement of. the adjustable head;

igure 51s a vertical section-on manner of adjustment thereof;

;Figure 6 is a detail verticalsection, on line 6-43 of Figure 4 showing'the adjustment of the grooving cutter; and

Figures 7 and 8 are detail perspective views of the channeling and grooving cutters, respectively.

Referring now to the drawings, Iv designates a base uponwhich the entiremechanism is mounted. The rear portion of thebase i has formed; thereona pair oiearsZ adapted to receive a'pivot 7 line !55 F of Figure i through the'headipivot, illustrating the pin3. The pin "3' may be secured in one of thev ears 2 by means of a set screw 4'01 otherwise: One end of the pin 3 may be reduced in diameter, as indicated at 5, to receive-a threaded sleeve 6 having a manipulating head. This sleeve is rotatable 0n the reduced portion 5 and may beheldin place thereon by a. screw l or othersuitable means. The threaded sleeve 6 is arranged to screwinto one ofa pair of downwardly extending lugs 8 formed on ahead 9. The pin3'is'journaled in the sleeve 6 and the other lug B so that it providesa pivotal mounting for the head t l on the base l.-

The forward portion of the-head 9 is provided with a lug I0 adapted toreceivea stopscrew H h whichis threaded in said lug and secured bya jam nutl2. The stop screw li is arrangedto engage an abutment I3 on the base lso as to 'adjustably position the head 9 on the base ina.

vertical direction. The head 9 may be adjusted laterally on the base by turning the sleeve'i. 'As said sleeve is stationaryon the pin 3, such adjustment will cause" the head 9 to slide alongth pin. 7 r

Suitably journaled in the base US a drive shaft I 4 operable by a crank I5.-The shaft I4 @311"? ries a pinionlfi meshing witha gear on a shaft i8 also journaledin the base ILL'IheShaft l8 carries at its other'e'nd a bevel gear I9 mesh ing with anotherhevel gearifl on an inclined shaft 2i which "extends downwardly at an angle of about 45? and carriesat its, outer end a feed wheel 22 having abeveled rim'23 adapted to provide a' feed roll upon which .a sole edge may rest. The rim 23 may be provided with teeth, or otherwise roughened, as indicated at 24 in Figure 1-;

so as to frictionally; engage the sole in order. to

feed the same, The-wheel 22 is further-provided with teeth 25, providing a bevel gear adapted to mesh with a complementary gear 26 formed on a roll or wheel 21. The wheel 21 hasa hat face disposed vertically above the'rim 23,,so as to engagetheedge of a sole resting on the rim 23, the wheel 21 providing an edge guide-for thesole, ",1 v Pivoted on a, screw28, engaging a threaded Socket ,2?) in the head 9 (see'Figurev 1),"isa presser foot 3!]. This presser foot is 'held'by a spring e31 against an adju'stable'f stop screw 32 I mounted in a lugl33 on the head 9 and secured by -a lock screw 34. The screw 32 may be manipulated to adjust the position of the presser foot 30 with respect to the head 9. Traversing a vertica-l passage in-a lug'35 on the head Bis an eye-bolt 36 WhichJcarries a manipulating nut 31-; resting-on the lug 35.; A;strong spring 38is' hung on the eye-bolt 36 and secured at its lower end to a pin 36 mounted transversely in the lower portion of the base I. Pivoted on the pin 39 is a lever 46 having a handle 4| extending through a slot 42 in the front wall of the base I so as to be accessible to the operator. The rear end of the lever 46 is provided with a socket 43 adapted to receive a push rod 44 extending upwardly therefrom into a similar socket in the under face of the head 9, as indicated in Figure 3. The tension of the spring 38 pulls the head 9 downwardly, thereby forcing the 'push rod 44 downwardly so as to raise the lever to its uppermost position, where it rests against the upper edge of the slot 42. By pressing downwardly on the handle 4 the operator may swing the lever 46 on its pivot 39 so as to force the push rod 44 upwardly to lift the head 9 on its pivot 3. The lever 46 may be moved far enough so that the socket 43 passes the dead center position of the spring 38 at which point the lever 46 lodges against the lower edge of the slot 42, not shown in the drawings. By these means, the operator may lift the head 6 so as to raise the presser foot 36 from the work and at the same time raise the cutters clear of the work, as will be described later. In its normal position, the presser foot 36 rests above and close to the horizontal upper portion of the rim 23 so as to press the work against said rim. It will be noted that a shoe sole may be placed onthis' horizontal portion of the rim 23 with its edge against the roll 21 and held against the rim 23 by the presser foot 36. With the work in this position, the operator may turn the crank |5, which Will act through the gearing described in connection with Figure 2, to turn the feed wheel 22 so as to feed the sole through the machine.

The roll 21 is driven in rotation during this operation.

? curately located in the bore by a set screw 41 whose tip is arranged to enter a locating socket 48 in the shank of the cutter 46 (see Figure 7). The end of the cutter 46 is ground to the form shown in Figure 7, so as to provide a, channeling knife 49.

When the cutter is properly located in the bore 45, the knife 49 is positioned over the horizontal portion of the rim 23 in such a wayas to channel a sole being fed over said rim.

Mounted in a transverse bore 56 in the head 9 is a shaft 5|. One end of the shaft 5| projects from the head on the same side as the cutter 46. Thisend of the shaft has secured thereto a head 52. The head 52 is, provided with a bore adapted to receive the cylindrical shank of a grooving cutter 53. The grooving cutter 53 is formed as illustrated in Figure 8 with a conical sharpened tip 54 having a small axial bore communicating with a side outlet opening 55 for the discharge of the chip. This cutter is that the collar 62 enters the groove 59'of the shaft 5|. It will be seen that by manipulating the screw 6|, the shaft 5| may be slid endwise in its bore 50 so as to adjust the position of the grooving cutter 53 with respect to the roll 21 or to the outer edge of the sole.

Journaled in a lug 63.0n the head 9 is a short shaft 64 carrying a cam head 65. The head is provided with a finger lever 66 by means of which it may be turned on the shaft 64. The head 65 is provided with two flat cam faces 61 and 68. The face 61 is slightly more distant radially from the center of the shaft 64 than is the face 68. The head 52 on the shaft 5| is provided with an inwardly extending arm 69 carrying a stop screw 16 whose head is positioned to engage one or the other of the faces 61 and 68, according to the position of the head 65. A spring H is arranged to turn the head 52 on its shaft in such a direction as to bring the screw 16 against the cam head 65.

, Adjustment of the screw l6 operates to vary the position of the tip 54 of the grooving cutter up and down relatively to the rim 23 of the feed wheel. The position of the screw it may be fixed by a set screw 12 threaded in the arm 69.

These parts may be manipulated for adjusting the machine as follows: The feed wheel 22 and the edge guide wheel 21 are stationary on the base that is, they are not adjustable. The head 9 may be adjusted vertically on its 'pivot with reference to the work by adjustment of the presser foot 36 through the agency of the screw 32. As the channeling cutter 46 is fixed in position in the head 6, the adjustment of the presser foot 36 adjusts the height of the channeling cutter with reference to the work and therefore controls the depth of cut made by this cutter. The position of this cut with reference to the sole edge may be adjusted by turning the sleeve 6 so as to shift the entire head 9 along the pivot pin 3. The position of the grooving cutter 54 with reference to the sole edge, is adjusted by manipulating the screw 6| which slides the shaft 5| along its bore.

The depth of cut of the grooving cutter is adjusted by the screw 16 with the cam head 65 in the position shown in Figure 3, where the screw 10 rests against the face 61 of the cam. Once this adjustment has been made, the cutter will groove the work to the proper depth. It may, however, be thrown out of operation at any time by pulling the finger lever 66 to the dotted line position of Figure 3, so as to bring the cam face 68 into position for engagement by the screw 10. As the face 68 is radially nearer to the center of the shaft 64 than the face 61, this movement will permit the head 52 to turn slightly in a counter-clockwise direction, as seen in Figure 3, and this will operate to raise thetip 54 of the grooving cutter. Accordingly, the groover may be thrown into or out of operation in an instant-at any stage of the work.

It will be noted that this machine provides for the operations of channeling and grooving a shoe sole while in place on the shoe, and in a convenient and positive manner. The cutters may be adjusted each to exactly the desired position, so that the depth of the channel and its spacing from the sole edge are accurately under control, as are also the depth and spacing of the groover. Accordingly, the channeling and grooving operation may be performed in such a manner as to fit any type of shoe.

Both cutters may be thrown out of operating position and the presser foot 36 lifted from the Work by depressing the handle 4|. In addition to this, the groover may be separately thrown out of operation by means of the finger lever 66.

described, a base, sole-feeding means on'said' Accordingly, either channeling or grooving operations may be started at any point along the work. This is of advantage in shoe repair work, Where the sole is sometimes scarfed .at its rear edge, and the channeling and grooving operation should be started somewhat forward of the rear edge, ,so astoavoid cutting clear through the sole.

sired, simply by removing the channeling cutter from the machine and operating the groover alone.

As the channeling knife 49 is of somewhat special shape, provision is made for sharpening the same. A lug I3 is provided on the base, or other suitable part, in a convenient position. This lug is provided with a socket 74 adapted to receive the shank of the cutter 46. The cutter is inserted with the rear end first,'so that the knife 39 protrudes from the upper end of the socket. 1 A set screw 15 is provided in such aposition that, when engaged with the locating socket 38 inthe cutter shank, it will secure'the cutter in position with the bottom face of the knife 49 uppermost and. horizontal, as indicated in broken lines in Figure 3. This places the cutterin a con- I venient position on top of the machine, so that the operator may apply a Whetstone,- so as to sharpen the cutting edge. Asthe stone is applied in a' perf ectly horizontal position, the cutter may be sharpened even by unskilled labor.

While this machine has been described as a unitary device, it will be understood that individual features or sub-combinations thereof may be use:

ful by themselves independently of other portions of the machine. It is understood that the employment of such individual features or subcombinations is contemplated by this invention and is Within the scope of therappe nded claims.

It is further obviousthat various changes may be madein the details of construction, within the scope of the appendedfclaims,without departing from the spirit of this invention. It is understood, therefore, that the invention is not limited to the specific details shown and/or described.

.Having thus described the invention, what is claimed is: r 1

1. In a channeling machine of the character described, a base, sole-feeding means on said base, a head pivotally mounted for vertical movement on said base, means for adjusting said head horizontally along its pivotal axis, and a channeling knife on said head.

2. In a channeling machine of the character It is also possible to perform a grooving operation Without channeling, as is sometimes debase, a head pivotally mounted on said base, means for adjusting said head'along its pivotal axis,a channeling knife mounted. on said head, and means for raising said head on its pivot adapted to lift said knife clear of the work.

3. In a channeling machine of the character described, abase, sole-feeding, means on said base, a head pivotally mounted on said base, means for adjusting said head along its pivotal axis, means for adjusting said head vertically about its pivotas a center, and a channeling knife positioned on said head for vertical adjustment relative to the Work by such vertical adjustrnent of said head.

j 4. In a channeling machine of the character described, a base, sole-feeding means on said base, a head pivotally mounted on said base,

means foradjusting said hea'dalong its pivotal axis, means for adjusting said head vertically about its pivot as a center, a channeling knife ,positioned'onsaid head for vertical adjustment relative to the work bysuch vertical adjustment of-sa'id-head, a grooving cutter on said head, and means: for adjusting said grooving cutter vertically and horizontally on said head with respect to said channeling cutter.

5. In'a channeling machine of the character described, a base, sole-feeding meanson said base, a head pivotally mounted on said base, meansfor adjusting said head along its pivotal axis, meansfor adjusting said head vertically about itspivot as a center, a channeling knife positioned on said head for vertical adjustment ralativetdth work bysuch vertical adjustment tr said hea d, a groovingcutter, a shaft on which said grooving cutter is mounted, andmeans for adjusting said shaft endwise on said head to adjust said grooving cutter with respect to the work. i

6.; In .a channeling machineof the character described, aibase, sole-feeding means on said base, ahead 'pivotally mounted on saidbase,

means for adjusting said head along its pivotal axis, means for adjusting said head vertically about its "pivot as a center, a channeling knife positionedon said head for vertical adjustment relative to the work by such vertical adjustment 

